Track-sander.



, PATENTED OCT. 23, 1906. F. B. COREY. 1 TRACK SANDER.

APPLICATION FILED FEB. 15. 1904.

Wione sses =v I Inventor:

' FredBCorey. W by MW UNITED STATES FRED B. COREY, OF- scHENEcrADY,

PATENT OFFICE.

NEW YORK, ASSIGNOR TO GENERAL Specification of Letters Patent.

Patented Oct. 23, 1906.

Application filed February 15,1904. Serial No. 198.571.

To all? whom it may concern.-

Be it known that I, FRED B. COREY, a citizen of the United States, residing at Schenectady, county of Schenectady, State of New York, have invented certain new and useful Improvements in Track-Sanders, of which the following is a specification.

The invention constituting the subject? matter of this application relates to tracksandcrs such as are commonly employed upon locomotives, electric cars, and other vehicles, in which compressed air is employed to remove the sand from the sand-trap to a delivery-pipe which conducts it to the track in front of the wheels of the vehicle, and it has particular reference to that ty e'of sanders in which the sand is removed fifom the trap by a blast of air acting directl upon it.

One of the distinguishing eatures of the present invention consists in employingmeans for delivering this blast of air against the sand in a broad and thin stream.

My invention is also distinguishable over the prior art by reason of a novel arrangement of parts by which great simplicity and compactness of structure are obtained.

These and other features of my invention willbe best understood by reference to the following detailed description, taken in connection with the accompanying drawings,

which illustrate one embodiment of my 1nvention.

In the drawings, F1 ure 1 1s a central vertlcal section of a san or constructed in accordance with my invention, said section be-.

ing taken on the line 1 1 of Fig. 2; and Fig. 2 is a plan view of the same with a portion of the casing removed.

In both views like characters refer to like parts.

The casing of the sander consists of upper and lower castings 1 and 2, which are suitably secured together-at their outer ed es, as by bolts passing through lugs, two of w 'ch, 3 and 4, are shown in Fig. 2. A sand-tray 5, having supporting-arms 6, 7, and 8 formed integral with the lower casting 2, is located within the casing. This tray is provided with an outer upturned edge 9, which cooperates with a downward projection 10 on the upper casting '1 to form a trap. Sand is supplied to the tray 5 through a threaded opening 11, located directly above it and 7 adapted to receive the lower end of a sandsupplypipeleading from the sand-box. The

ed openin 12 in line with the opening 11 and threa ed for connection to the upper end of the sand-delivery pipe. Compressed air is supplied to the sander through a suitable supply-pipe (not shown) which is adapted to engage the threaded opening 13, extending through the arm 8 into communication with the port 14 in the body of the tray 5. A blast-nozzle 15 is screwed into the center of the upper side of the tray 5 in line with the supply and delivery 0 enings 11 12 of the casmg and is provide with an opening 16,

through which air may be supplied to a chamber 17, formed above the tray by a conical cap 17, also in line with the o enings 11 12. This cap is connected by so der or otherwise to a sup orting rln 19, which is screwed onto the outside 0 the nozzle 15. The ring 19 is rovided with suitable openings 20, which ead from the chamber 17 to the upper side of the tray 5 and through which air is adapted to pass to force the sand in the tray over its outer ed e 9 to its under side and thence to the delivery-pipe. By reason of the nearness of the outer edge of the cap 18 to the upper side of the tray 5 a very narrow but long openin is provided through which the compresse air 1s forced against the sand in the trap in a broad thin stream extending throu bout the entire periphery of the tray 5. With this arrangement the sand delivered to the opening 12in passing over the edge 9 of the tray is spread out to such an extent as not to produce any serious wearing action on the casting 1 of the casing. This of course materially increases the life of the sander. By this arrangement the full air-pressure is also applied, in case the sand is wet and tendsto clog, at the weakest point, and thus acts most efliciently to force ano enin and continue the delivery of the san %t is apparent that many modifications and alterations may be made in the sander illustrated without de arting from the spirit of my invention, and therefore do not wish to be limited to the specific device shown, but 'aim to cover by the terms of the appended claims all such modifications and alterations.

which communicates with the port 14 and" casting 2 is provided with asimilarly-thread- What I claim as new, and desire to secure by Letters Patent of the United States, is

1. A track-sander comprising a sand-trap, a sand-supply opening for admitting sand to the trap, a sand-delivery opening for conducting sand from the trap, and means for directing a broad thin stream of air against the under side of the sand in the trap.

2. A track-sander comprising a sand-trap, a sand-supply opening for admitting sand to the trap, a sand-delivery opening for conducting sand from the tra and a blast device for delivering a broa thin blast of air against the under side of the sand in the trap.

3. A track-sander comprising a sand-trap, a sand-supply opening for admitting sand to the trap, a sand-delivery opening for conducting sand from the trap, a blast-nozzle, and means for directing the air issuing from said nozzle against the under side of the sand in the trap in a broad thin stream.

4. A track-sander comprising a sand-trap, a sand-supply opening for admitting sand to the trap, a sand-delivery opening for conducting sand from the trap, a blast-nozzle, and means comprising a cap located over said nozzle for directing the air issuing from said nozzle against the sand in the trap in a thin stream at the outer edge of said cap.

5. A track-sander comprising a casing having sand supply and delivery openings, a sand-tray, a cap having its outer edge terminating in close proximity to said tray, and means for supplying compressed air to the space between said cap and tray.

6. A track-sander comprising a casing having sand supply and delivery openings, a

sand-tray, a cap having its outer edge terminating in close proximity to said tray, and means located in said tray for supplying compressed air to the space between said cap and tray.

7. A track-sander comprising a casing having sand sup ly and delivery openings, a

sand-tray, a efiecting-cap having its outer 5 9. In a track-sander, the combination of a casing rovided with a sand-supply opening and a cihwnward annular pro'ection, a sandtray located directly below said supply-opening and provided with an upturned edge which forms with said downward projection a trap, a cap located above said tray and below said 0 ening, and means for supplying compresse air between said cap and tray.

10. In a track-sander, the combination of a casing, a sand-tray located within said casing, a plurality of arms connecting said tray and casing, an upwardly-projecting blastnozzle on said tray, and an air-passage communicating therewith through one of said arms.

11. In a track-sander, the combination of a casing, a sand-tray located within the casing, a blast-nozzle projecting upwardly from the tray, and means for deflecting the air issuing therefrom against the upper side of said tray.

In witness whereof I have set my hand this 12th day of February, 1904.

FRED B. COREY.

Witnesses:

BENJAMIN B. HULL, HELEN ORFORD. 

